<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<title>hello Vue</title>
</head>
<body>
	<div id="app">
		<!--v-once指令使用-->
		<h1>{{message}}</h1>
		<h1 v-once>{{message}}</h1>
	</div>
</body>
<script src="../../css/vue.js">
</script>
<script>
	const app = new Vue({
        el: "#app",
        data: {
            message: 'hello Vue',
        }
    });
</script>
</html>